###### Asked in Algebra

Algebra

# If the discriminant of a quadratic equation equals zero is true of the equation?

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## Related Questions

###### Asked in Math and Arithmetic

### Which values for a b or c can you not use the quadratic equation?

a = 0. That is because a = 0 implies that there is no quadratic
term and so the equation is not a quadratic!
There may be some who make claims depending on the value of the
discriminant (which is b2-4ac). That is true only for elementary
mathematics. In more advanced mathematics (complex analysis), the
quadratic equation can be used in all cases except when a =
0: the value of the discriminant is irrelevant.
a = 0. That is because a = 0 implies that there is no quadratic
term and so the equation is not a quadratic!
There may be some who make claims depending on the value of the
discriminant (which is b2-4ac). That is true only for elementary
mathematics. In more advanced mathematics (complex analysis), the
quadratic equation can be used in all cases except when a =
0: the value of the discriminant is irrelevant.
a = 0. That is because a = 0 implies that there is no quadratic
term and so the equation is not a quadratic!
There may be some who make claims depending on the value of the
discriminant (which is b2-4ac). That is true only for elementary
mathematics. In more advanced mathematics (complex analysis), the
quadratic equation can be used in all cases except when a =
0: the value of the discriminant is irrelevant.
a = 0. That is because a = 0 implies that there is no quadratic
term and so the equation is not a quadratic!
There may be some who make claims depending on the value of the
discriminant (which is b2-4ac). That is true only for elementary
mathematics. In more advanced mathematics (complex analysis), the
quadratic equation can be used in all cases except when a =
0: the value of the discriminant is irrelevant.

###### Asked in Algebra

### What is true of the discriminant?

###### Asked in Algebra

### What has no true roots?

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